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FPU copy should now work.

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This commit is contained in:
TomW 2015-05-18 20:33:33 +01:00
commit 52a27a9256
7 changed files with 232 additions and 44 deletions
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33
src/x87_ops.h
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@ -149,6 +149,39 @@ static inline void x87_st80(double d)
writememw(easeg,eaaddr+8,test.begin);
}
static inline void x87_st_fsave(int reg)
{
reg = (TOP + reg) & 7;
if (tag[reg] & TAG_UINT64)
{
writememl(easeg, eaaddr, ST_i64[reg] & 0xffffffff);
writememl(easeg, eaaddr + 4, ST_i64[reg] >> 32);
writememw(easeg, eaaddr + 8, 0x5555);
}
else
x87_st80(ST[reg]);
}
static inline void x87_ld_frstor(int reg)
{
uint16_t temp;
reg = (TOP + reg) & 7;
temp = readmemw(easeg, eaaddr + 8);
if (temp == 0x5555 && tag[reg] == 2)
{
tag[reg] = TAG_UINT64;
ST_i64[reg] = readmeml(easeg, eaaddr);
ST_i64[reg] |= ((uint64_t)readmeml(easeg, eaaddr + 4) << 32);
ST[reg] = (double)ST_i64[reg];
}
else
ST[reg] = x87_ld80();
}
static inline void x87_ldmmx(MMX_REG *r)
{
r->l[0] = readmeml(easeg, eaaddr);